The process has left McLaughlin frustrated, which he revealed after winning Saturday’s Race 12 at Barbagallo Wanneroo Raceway.

“I wouldn’t say personally, but yeah, absolutely I’m frustrated,” said McLaughlin in the post race press conference when asked if the parity changes had affected him personally.

“I’ve seen how hard everyone’s worked as soon as this (Mustang) thing was announced.

“They worked bloody hard on building the car from the computer screen to what it is now.

“We got through all the VCAT (aerodynamic testing) and all that sort of stuff and got to a point where it got all ticked off by everyone. And then eventually all this stuff happens.

“I understand there’s bits and pieces that went on, but whether you agree with it or not, you’ve got to deal with it. We’ve got to push on and Supercars have got to adjudicate where they need to.

“I’m probably more on the (team’s) side, you look at it from a frustrating point of view because you feel like you’re just a good team, and we do feel like we are one of the best teams up there – and that’s where we feel the differences (are) rather than the actual car.

“I think last year we were probably on the back foot a little bit in terms of overall car pace. I think that’s all sort of evened out now and we’re showing true potential.”

“I feel like I’m driving the best I ever have,” McLaughlin told Speedcafe.com prior to last weekend’s races.

“Some people will say that’s due to other things, why we’ve been so dominant, but I’m proud of my team and proud of how we’ve been going and I’ve put in a lot of hard work as well as my team-mate (does), and we’re here because we’ve done a good job.”